I have build board with rf transceiver (power 25db) with ipex connector. But with antenna communication range is only 100m from promissed 20km.
I think that antenna trace is incorrect.
I try to simulate that trace with ADS software, but is showing s11=-20db and s21=-0.06db.
I attach image from simulation
[img]
http://s15.postimg.org/nht2l0ku1/to_forum.png[/img]

This is my first simulation in that software.
Can you tell me is my plan to simulate trace is good?
If not please write how to simulate that problems?